GB1152488A - Electronic Circuit Arrangements - Google Patents
Electronic Circuit ArrangementsInfo
- Publication number
- GB1152488A GB1152488A GB2742666A GB2742666A GB1152488A GB 1152488 A GB1152488 A GB 1152488A GB 2742666 A GB2742666 A GB 2742666A GB 2742666 A GB2742666 A GB 2742666A GB 1152488 A GB1152488 A GB 1152488A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transistor
- stages
- stage
- emitter
- electronic circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06G—ANALOGUE COMPUTERS
- G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
- G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
- G06G7/18—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals
- G06G7/184—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals using capacitive elements
- G06G7/186—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals using capacitive elements using an operational amplifier comprising a capacitor or a resistor in the feedback loop
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Power Engineering (AREA)
- Software Systems (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Amplifiers (AREA)
Abstract
1,152,488. Transistor amplifying circuits. BROOKDEAL ELECTRONICS Ltd. 7 Aug., 1967 [20 June, 1966], No. 27426/66. Heading H3T. A frequency selective electronic circuit arrangement comprises a plurality of stages of amplification coupled in sequence in a closed loop, two stages Q 1 , Q 3 having integrating functions and another stage Q 2 having a phase-reversal function, wherein the integrating stages comprise transistors of the same type and the phase-reversal stage comprises a transistor of type complementary thereto. Stages Q 1 , Q 3 are each provided with feedback from output to input via a capacitor C 1 , C 2 respectively, and overall feedback is provided via a resistor R 1 ; as shown, the third stage is followed by an output stage comprising an emitter-follower Q 4 . In a modification (Fig. 2, not shown) each of the first and third stages comprises a pair of like transistors with their collectors connected together, the input being applied to the base of the first transistor in the pair, which has its emitter connected to the base of the second transistor and to earth via a resistor; the emitter of each second transistor is earthed. Reference has been directed by the Comptroller to Specification 781,374.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2742666A GB1152488A (en) | 1966-06-20 | 1966-06-20 | Electronic Circuit Arrangements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2742666A GB1152488A (en) | 1966-06-20 | 1966-06-20 | Electronic Circuit Arrangements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1152488A true GB1152488A (en) | 1969-05-21 |
Family
ID=10259397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2742666A Expired GB1152488A (en) | 1966-06-20 | 1966-06-20 | Electronic Circuit Arrangements |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1152488A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0459313A1 (en) * | 1990-06-01 | 1991-12-04 | Deutsche Thomson-Brandt Gmbh | Comparator circuit for an integrator |
-
1966
- 1966-06-20 GB GB2742666A patent/GB1152488A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0459313A1 (en) * | 1990-06-01 | 1991-12-04 | Deutsche Thomson-Brandt Gmbh | Comparator circuit for an integrator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |